I have a 0-5V tank sensor. Does this need to plug into port 1 or 2 on the Tank 140 with an external power supply - OR can port 3 or 4 be used with the built in 24V power?
asked
I have a 0-5V tank sensor. Does this need to plug into port 1 or 2 on the Tank 140 with an external power supply - OR can port 3 or 4 be used with the built in 24V power?
